I am trying to capture video from a v4l2 device. I have the bttv2 driver and the v4l2 bits installed seemingly correctly. When I run xawtv I get all the extras on the bottom of the menu so I think v4l2 is working correctly. What I am seeing is a slight jerkyness in video I am capturing. I have tried encoding (I have tried mpeg1 and 4, divx and divx4) with many tools (ffmpeg, NVrec, RTE/mp1e, avifile based tools, etc.) and cannot seem to get rid of the jerkyness of the resulting file. I am using CNN as my "baseline" because it always has that scrolling banner on the bottom of the screen and it's very easy to see how jerky the result is. I am starting to suspect that it's the capturing that is causing the jerkiness, not the encoding. I am wondering about how to verify this. Any ideas on what I can do to get rid of this jerkiness. I can provide a sample file if you would like to see exactly what the problem is. The tool that does give the smoothest (quite acceptable indeed) capture is mp1e but the lack of A/V sync with it is unacceptable I'm afraid. I would love to try the much ballyhooed NVrec using the RTE library but I have not found a set of parameters that does not cause it to deadlock. Thots, ideas? b. -- Brian J. Murrell
